Window-lock.



A. P. GILLEN.

WINDOW LOCK.

APPUCATIOH FILED MAR. H.

Patented May 23,1916.

I T MFFTM.

ARTHUR I. GILLEN, OF CHICAGO, ILLINOIS.

WIND 0W-LOGK.

Specification of Letters Patent.

Patented May 23, 1916.

Application filed March 17, 1916. Serial N 0. 84,904.

To all whom it may concern:

Be it known that I, ARTHUR P. GILLEN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Window-Locks, of which the following is a specification.

This invention contemplates the provision of a window sash lock designed to permit either the upper or lower sash of the window being opened anappreciable distance for the purpose of ventilating the room, but locking said sashes against further adjustment with a View of eliminating access being had to the room or building through the windows.

In carrying out my invention I provide a device of the above mentioned character wherein the locking member can be swung to an inoperative position thereby allowing the sashes to be readily adjusted, together with a novel construction of means for holding said member in its operative position.

The nature and advantages of the invention will be better understood from the following description when taken in connection with the accompanying drawing, the invention residing in the construction, combina tion and arrangement of parts as claimed.

In the drawing forming part of this specification like numerals of reference indicate similar parts in the several views and wherein Figure 1 is a fragmentary view of a win dow showing the lock operatively associated therewith. Fig. 2 is a similar view showing the inoperative position of the locking member. Fig. 3 is a transverse sectional view through the window and lock showing the locking member in operative position. Fig. 4 is an enlarged detail view of the de vice removed from the window.

Before entering into a detail description of what is herein shown and described I desife to have it understood that the same is merely illustrative of one embodiment of the invention to which I do not limit myself, and that such changes in the construction and arrangement of parts as desired, may be resorted to without departing from the spirit of the invention.

Referring more particularly to the drawing A indicates the upper sash of the window and B the lower sash thereof, while the device forming the subject matter of my invention is indicated generally at C.

As shown in this specific instance the device comprises a plate 10 adapted to be secured to one of the side rails of the upper sash A adjacent the inner longitudinal edge thereof, and at a point approximately six or seven inches above the lower sash B. Projecting centrally from one edge of the plate 10 and beyond the adjacent edge of the sash A is a knuckle 11 adapted to aline with spaced knuckles 12 on the locking member 13, and through which knuckles is passed a pintle 1d thereby hingedly connecting the locking member 13 with the plate 10. Of course it is to be understood that these parts can be hingedly connected in any other suitable manner, the purpose for which connection will be hereinafter more fully described.

The locking member 13 preferably consists of a plate having anintermediate outwardly bulged portion 15, which bulged portion may vary in configuration, and which serves to limit the adjustment of either of the sashes, when the member 13 is opcratively associated with the plate 10. The member 13 con tacts the plate 10 when in operative position as shown in Fig. 1, at which time the outwardly bulged portion 15 of the member is disposed in the path of movement of the lower sash B, and when these parts contact, neither the upper nor lower sash can be further adjusted to an open position. Manifestly either the lower sash may be elevated a slight distance, or the upper sash lowered the same distance for the purpose of ventilating the room when desired, but cannot be adjusted to a position whereby entrance may be had to the room through the window. However by reason of the pivotal connection between the plate 10 and the locking member 13, the latter may be swung inwardly against the window pane, or in close proximity thereto as shown in Fig. 2, in which position the locking member is disposed out of the path of movement of the lower rail B, thereby allowing either one or both of the sashes to be adjusted to any degree, without any obstruction or hindrance on part of the locking device.

With a view of holding the locking member 13 fixed relatively to the plate 10 in operative position, I preferably make use of a hook-like element 16 secured by means of a pin 17 to the locking element at one side of the outwardly bulged portion 15 thereof, the element 16 having an elongated slot 18 through which the pin 17 extends, thereby the free end of the element 16 being bent to provide a right angularly disposed manipu- 10 lating flange 19 to facilitate the adjustment of the 'elementin the proper direction to either lock the plate 10 and member 13 together or efi'ect their release subsequent to being locked. Pivot-ally mounted upon the pin 17 is a link 20 provided with a thumb flange .21 by means of which the link is lowered to engage the flange 19 of the member 16 to hold the latter immovable in operative position, or to elevate the link when it is desired to'eiiect a release of the locking element 13 from the plate 10. Of course the link 20 only serves to positively hold the element 16 in its operative position, and this link may be dispensed with if desired. The device in its entirety is very simplein construction, and capable of being quickly and easily manipulated for the purpose intended.

Vhat is claimed is I f 1. A window lock comprising a plate adapted to be secured to the upper sash an appreciable distance above the lower sash of the Window, a window stop hingedly connected to said plate and adapted to contact the latter in operative position, and a hooklike element slidablymountcd on said stop and adapted to embrace the adjacent edges of the latter. and said plate to hold these parts fixed relatively in operative position.

2. A window lock comprising a plate adapted to'be secured to the upper sash an appreciable distance above the lower sash of the window, a window stop hingedly connected to said plate and adapted to contact the latter in operative position, a hook-like element adjustably associated with said stop and adapted to embrace the adjacent edges of the latter and said plate to hold these parts fixed relatively in operative position, and means for locking said element against movement in its active position.

3. A window lock comprising a plate adapted to be secured to the upper sash an appreciable distance above the lower sash of the window, a window stop hingodly connected to said plate and adapted to contact the latter in operative positions, a hook-like element adjustably associated with said stop and adapted to embrace the adjacent edges of the latter and said plate to hold these parts fixed relatively in operative position, and an arm pivotally mounted on said stop and adapted to engage the hook element to hold the latter in active position.

4. A window lock comprising a plate adapted to be secured to the upper sash an appreciable distance above the lower sash of the window, a window stop hingedly connected to said plate and adapted to contact the latter in operative position, a hooklike element adjustably associated with said stop and adapted to embrace the adjacent edges of the latter and said plate to hold these parts fixed relatively in operative position, a flange on one end of said element, an arm swingingly supported on said stop and adapted to be disposed in parallelism with said element and engage said flange to hold said element in active position, and a finger gripping portion carried by said arm.

In testimony whereof I allix my signature in presence of two witnesses.

ARTHUR P. GILLEU.

VVit-nesses.

WM. PA'roN, J12, GEORGE B. SrMMoNs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington. D. C. 

